Specialized Hotwalk Wheel Description: Specialized Hotwalk Wheels replace wheels found originally equipped on select juvenile Specialized Bicycle models. Pre-mounted Specialized Rhythm tires require no inflation for use, relying instead on a durable, user-friendly foam core. Features: Replacement wheel with airless tire for juvenile bikes Pre-Mounted airless Specialized Rhythm Tire Includes bolts and mounting hardware Rims do not include braking surface Compatible with: Specialized Hotrock Specialized Hotwalk Specifications: Wheel Size: 12" ISO Diameter (ETRTO): - Position: Front or Rear Tire Type: Airless (Foam) Brake Type: - Hub: Aloy Axle Type: Bolt-On Hub Spacing: 3/8" x 95mm Rim: Alloy (Single Wall) Rim Width: 21mm (Internal) Valve: - Spoke Count: 16H Spoke Type: J-Bend Material: Steel Color: Black Weight: -